This is technical data on next-generation technology trends that combine IoT-based lightning protection systems, lightning surge analysis, and complex alarm and protection systems, reflecting KS C IEC 62305 and related electrical equipment standards.

 

1. Applicable target and system configuration

• This system is applied to buildings, structures and related facilities that contain electrical and electronic equipment requiring protection from lightning.

• It consists of an external lightning protection system (air-termination device, down-conductor, grounding electrode), an internal lightning protection system (SPD, equipotential bonding, grounding network), and an IoT-based detection, analysis, and notification module.

• According to KS C IEC 62305, direct protection from lightning (external) and indirect protection from induced and penetrating surges (internal) must be provided in parallel.

 

2. Grade selection and design criteria

• The lightning protection system rating is selected based on the characteristics of the object to be protected and the results of the risk assessment (IEC 62305-2).

• For each grade, apply the appropriate method among the air-termination arrangement, protective angle method, rotating sphere method, and mesh method specified in KS C IEC 62305-3.

• The grounding system is designed to be integrated with a low-impedance, equipotential bonding structure.

 

3. IoT and lightning surge sensor combination criteria

• Current, voltage, leakage current, and surge sensors are installed in key parts of the system to continuously detect and collect data on lightning and surge events.

• Sensor data is transmitted in real time to a central control server and cloud platform via wireless communication networks (LPWAN, LTE, 5G, etc.).

• Key parameters such as lightning frequency and intensity, surge characteristics, ground potential, and leakage current are stored and analyzed as digital data, and rapid alarms and diagnostic reports for abnormal signs are automatically distributed.

 

4. Complex analysis, alerting, and maintenance functions

• It includes functions such as lightning inflow path analysis, surge propagation pattern interpretation, and damage cause identification based on IoT data.

• Lightning warning function is used to warn in advance of damage to people, automation systems, power systems, etc.

• We operate real-time alerts, risk area visualization, and mobile notification systems for administrators and users.

• Diagnose the status, replacement time, and maintenance needs of protective devices such as SPDs and lightning rods using sensor data, and support automated management.

• Legal design and construction standards, maintenance cycles, etc. comply with KS C IEC, KEC (Korea Electrical Installation Regulations) and field standards.

 

5. Technology Application and Expected Effects

• Multi-protection and advance warning for all lightning hazards, including direct, indirect, and induced lightning, as well as data-based prevention and rapid recovery support.

• Protecting equipment and personnel, ensuring continuity of electronic systems, maximizing maintenance efficiency, and ensuring comprehensive compliance with legal and technical regulations.